linux-kernel - Re: [PATCH] gpiolib: fix warning about iterator

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Message-ID: <20151227133154.GA8735@sudip-pc>
Date:	Sun, 27 Dec 2015 19:01:54 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	Ross Zwisler <ross.zwisler@...ux.intel.com>,
	Alexandre Courbot <gnurou@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH] gpiolib: fix warning about iterator

On Sat, Dec 26, 2015 at 10:31:15PM +0100, Linus Walleij wrote:
> On Sat, Dec 26, 2015 at 8:58 AM, Sudip Mukherjee
> <sudipm.mukherjee@...il.com> wrote:
> 
> > We were getting build warning about "iterator" being used uninitialized.
> > Use iterator properly to fix the build warning and in the process remove
> > the variable "pos" which is not required now.
> >
> > Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
> 
> Aha there is a real patch solving the problem. Sorry Ross,
> had to drop your patch and replace it with this.
> 
> Patch applied!

oops .. i think i have a small mistake in the patch. After the loop for
list_for_each_entry ends we are having:
        if (iterator->base + iterator->ngpio <= chip->base)
	                goto found;

But at the end of the loop iterator will point to head. The condition in
the loop is &pos->member != (head).
I am sending v2 as reply to this thread. It will be great if you can
review and apply that instead of this one.
Sorry for the inconvenience. I guess christmas effect. :)

regards
sudip
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